The new dimension in spark plug technology. Iridium is a high-tech, precious metal used in aerospace applications, with a rainbow shimmer. It is extremely hard, heat resistant and mechanically resilient - in short, an ideal material for a spark plug. That makes the new NGK iridium spark plug with its valuable precious metal a good investment - which pays back in the long run: lower fuel consumption, longer life, even combustion, no dropouts, no misfires, no soot formation in stop-and-go traffic.
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